Rivet and cap setting machine.



' w. c. BRAY. RIVET AND CAP SETTING MACHINE.

APPLICATION FILED JAN- 29, I9I5.

Patented N 0v. 23, 1915.

3 SHEETS SHEET l.

COLUMBIA PLANOURAPH (20., WASHINGTON. n. c.

w. c. BRAYf 'RIVET AND CAP SETTING MACHINE.

APPLICATION HLED JAN. 29, i915. 1,161,022. Patented Nov. 23, 1915.

3 SHEETS-SHEET 2- W. C. BRAY.

v RIVET AND CAP SETTING MACHINE.

APPLICATION FILED JAN. 29. 1915.

Patented Nov. 23, 1915.

3 SHEETS-SHEET!- oiviTnn sTaTns PATENT FFICE.

wILLiAM o. BRA on EWTON, MASSACHUSETTS, AssIGNoR To TUBULAR RIVET & STUD COMPANY, or BOSTON,- MASSACHUSETTS, A. CORPORATION on MASSAGHIL' SETT'S;

R'IVET AND GAP SETTING MACHINE.

Specification of Letters Patent.

Patented N ov} 2351915 Application filed January 29, 1915. Serial No. 5,121.

ToaZZ whom it may concern:

Be it known that I, I/VILLIAM C. Bear,

a citizen of the United States, residing at The present invention relatesto rivet and,

cap setting machines and more particularly to the cap feeding mechanism employed inv machines of this type. i

The object of the present invention is to provide certain improvements in the feeding mechanism causing the capstobe delivered separately and at uniform intervalsin operative relation to the'setting devices. I

With this object in view the several features of the invention consist in certain novel features of construction.combinations, and arrangements of parts hereinafter described and claimed, the advantages of which will be obvious tothose skilled in the art from the following description. I

In the accompanying drawings illustrating the preferred form of the invention; Figure 1 represents a side elevation of a rivet and cap setting machine embodying the present invention; Fig. 2 is adetail showing a side elevation-upon an enlarged scale of a portion of the cooperating cap'and rivet feeding chutes and setting mechanism; Fig. 3 is a detail showing a section of the cap feeding chute taken'upon the line 33 of Fig. 2 looking in the direction ofthe arrow; Fig. 4: is a detail showing a side ele-. vation partly in section of, the cap feeding chute and setting anvil with a portion of the rivet setting mechanism in the position which it occupies prior to the setting operation; Fig. 5 is a view similar to Fig 4; and

illustrating the relative position of the parts after the cap hasbeen set upon the rivet; Fig. 6 is a detail illustrating anend elevation of the cap feeding chute with the anvil and supporting head removed; Fig. 7 is a detall showlng an elevation of the supporting head removed from the machlne; and

Fig. 8 is a detail showing asection takenupon the line 8-8 of Fig.,t and looking in; the direction of the arrow.- I

The machine shown in the illustrated embodiment of the invention is employed for setting rivets in various kinds of work and I comprises essentially arivet setting lever 2 fulcrumed upon the machine frame 3 at: 4:

and operated in the usual manner from the driving shaft 5 through a crank and adjust able connecting rod 6'. The rivet setting;

lever actuates a sliding plunger 7 and the rivets are positioned in alinement with, the plunger by the usual type of. positioning head 0r tube 8 which is supplied automatL cally with rivets by a feeding chute indi-J cated at 9. The feeding chute is; connected I with a hopper 10 supported upon the upper portion of the machineframe and provided with agitating mechanism 11 operating from the settlng lever. As the present construction is well known in the art and forms no part specifically ofthe present inventionit has been only briefly described herein.

The present invention consists in provid- 111g certainv improvements in the mechanism for automatically feeding caps to the setting devices and is arrangedflto feed the caps separately and at uniform intervals to position the cap, in a predetermined location upon the setting anvil with relation to the setting plunger.

face of the; cap; In the illustrated embodiment of the invention the feeding mechanism positions each cap upon, the setting It will be observed that each cap consists of a thin disk having an annular inturned flangewhich: forms what: maybe' conveniently referred to as the open.

orderthatth-ecaps may be fed tothe setting deviceby gravity. The hopper is conven'-: iently rotated from the main drive shaft through a drive; belt 26, intermesh-ing worm gearsindicated at 27 and a second drive belt 28 hi h ngages with a belt receiving:

groove 80,. formedin the shell-of the hopper. The rotary hopper serves to deliverthe caps to the upper' portion 41 ofthefeedchutein This position of the plate causes the upper nism. To this end .a separator plate 50 is slidingly supported inthe lower end of the feed chute and is provided with separator fingers 51 and 52 projecting into opposite sides'of the passageway and arranged to permit a single cap to be fed between them.

The separator plate is normally retained in theposition shown in Fig. 2 by a fiat spring 53 secured to the side of the chute and having its free end bearing against the plate.

finger 51 to project'into the passagewayand hold the line of caps. In order to automatically control the feed of caps to the setting anvil and insure that a single cap shall be positioned upon the anvil for the reception of each rivet, the separator plate is operated in timed relation with the rivet setting lever. To this end the plate is moved to permitthefeeding of one cap by a feed lever55 pivoted to theframe at 57 and having its lower end yieldinglyconneoted with the plate through a spring 58, as shown clearly in. Fig. 2. In the illustrated embodiment of the invention the movements imparted to the separator plate by the feed lever are variedby pivotingthe spring 58 to the lower end of the lever at 62 and providing an adjustable set screw 63 threadedly supported in the lower end of the lever and bearing against the member 58 to adjust the free end of the member with relation to the lever. As stated previously, the feeding lever is actuated through the setting lever 2 and this is accomplished by providing the upper end of the feeding lever with a curved cam surface 60 which engages witha roll 61 journaled upon the setting lever and so arranged that-upon each oscillation of the setting diately by the spring 53 and a single cap is lever to drivea rivet a feeding movement is imparted to the separator plate to permit a single cap to drop between the fingers.

The'separator plate is then returned immethus allowed to drop into an-inclined chute '65 leading directly to a cap settinganvil 66.

It will be noted that the caps are supported in the feed chute on their edges with'their open faces facing in the same direction and in order to locate the caps in the proper operative relationto the setting devices it is essential that they lie upon the setting anvil with the open face facing upward. This is conveniently accomplished in the illustrated embodiment of the invention by providing the' end of the inclined passageway with an inclined wall 68 which cooperates with an inwardly projecting plate 67, as shown clearly in Fig. 6, to form a deflecting passage for the cap. This portion of thepassageway tips the cap into an inclined position and communicates di- 1 rectly with a receiving bore 69 formed in a head 70 to feed the cap to the setting anvil in the position shown in Figs. 4 and 5. In

order to secure the head 70 in place theend of the chute is provided with oppositely disposed ears 71 which engage with the sides of the head and are secured thereto by set screws 7 5, as shown clearly in Fig. 3.-

The caps are fed entirely by gravity in passing from the supply hopper to the anvil. To permit a gravity feed, the caps are supported in an upright position so that they may roll on their edge. hopper l5 the caps are delivered-to the supply section ll, from which they roll down to the vertical separating section 45.- In the separating section the caps are-released one at a time and roll down into the reciprocating feed section'65. The sections 41- and 45 have a comparatively steep inclination so that the caps will travel rapidly, but the inclination of the feed section 65 is made slight so that acap', released from the separator 50, will roll slowly through the section 65, and will-reach the deflector 68 with only sufficient momentum to turn over and land on the setting anvil without rebound.

It will be noted from an inspection of the drawings that with this type of machine the work is normally positioned by'the head 70 above the setting anvil and as the rivet is driven through the work therhead is depressed from the position shown in Fig. 4 into that shown in Fig. 5. To this end the head 7O is'yieldingly supported in theposition shown in Fig. & by a coiled spring 72 and the inclined chute 65 is rigidly connected with the head at one end and slidingly connected at its opposite end with the lower portion 'of'the'vertical chute 45. In order to form a continuous closed passageway for the capsrat all times, the inclined chute 65 is provided with a curved tongue 73 which projects within the lower member secured to the machine frame, as

shown clearly in Figs.,1 and 2.

While itis preferred to employ the spa.

From the V end'of the vertical chute 45' and slides be- The inventionhaving been described, what is claimed is: p

1. A rivet and cap setting machine com.- prlslng a setting anvil, an inclined chute arranged to support caps on their edges and having a deflecting passage at the end of the chute to turn the caps to a flat position as they reach the setting anvil, a cap separator, and mechanism for actuating the separator to release individual caps.

2. A rivet and cap setting machine comprising a setting anvil, a chute for supporting and guiding a series of caps including an inclined portion arranged to support the caps on their edgesandhaving adeflecting passage to turn the caps toward their closed faces and deliver them to the setting anvil with their open faces upward, a separator for releasing individual caps from the series in the chute, and mechanism for actuating the separator from the rivet setting mechanism.

3. A rivet and cap setting machine comprising a setting anvil and plunger, a plunger actuating lever, mechanism for automatically delivering rivets to the setting device, a chute for guiding caps on their edges including an inclined portion arranged to deliver caps to the setting anvil, a gravity separator operated in timed relation to the plunger actuating lever for delivering individual caps from the series in the chute, and a deflector for turning the caps to a flat position on the anvil.

4. A rivet and cap setting machine comprising a setting anvil for rigidly supporting the cap and a cooperating rivet setting plunger, a yielding head surrounding the anvil and provided with a cap receiving bore, and a feed chute for supporting and guiding the caps provided with an inclined portion connected to move vertically with the head and having an exit end arranged to deliver the caps on to the setting anvil.

5. A rivet andcap setting machine comprising a vertical feed chute, a yielding work support, an inclined chute secured to the work support and having a tongue projecting within the vertical chute, and an upturned flange engaging with the outside of the chute to form a continuous closed passage for the caps.

6. A rivet and cap setting machine comprising awork support having a'cap receiving bore, an inclined feed chute for support- 1 ing the caps on their edges provided with a passageway having an inclined wall, I and an inwardly projecting plate secured to the chute to form a deflecting passage communieating with the cap receiving bore in the work support.

7. A rivet and cap setting machine comprising a vertical feed chute, a yielding work support, an inclined feed chute secured to the work support and slidingly connected with the vertical chute, a guide rod depending from the inclined chute, and a member slidingly receiving the rod to guide the vertical movements of the inclined chute.

8.. A rivet and cap setting machine comprising a cap supporting anvil and cooperating rivet setting plunger,a yielding work supporting head surrounding the anvil and provided with a cap receiving bore, a feed chute connected with the head for delivering caps to the bore, and means operated by the setting mechanism for delivering individual caps through the chute to the cap receiving head.

9. A rivetand cap setting machine comprising a setting anvil and a cooperating rivet setting plunger, a plunger actuating lever, a reciprocatory head surrounding the anvil, a cap feeding chute connected with said head, a cap supplying chute connected with the feed chute, and a yieldable connection between the feed chute and the supply chute to permit the feed chute to move with the head during the rivet setting operation.

10. A rivet and cap setting machine comprising a setting anvil, a gravity feed chute through which caps roll on their edges to the anvil, and a deflector connected with the chute, adjacent the setting anvil, to turn the caps to a flat position as they reach the anvil.

. 11. A rivet and cap setting machine com prising a setting anvil, and a gravity feed chute having a slot through which caps roll on their edges to the anvil, said chute having a feeding section of slight inclination to deliver to the anvil without rebound.

12. A rivet and cap setting machine comprising a setting anvil, a gravity feed chute having a slot through which caps roll on their edges to the anvil, said chute having a supply section, a feeding section having a slight inclination to retard the rolling movement of the caps, and a deflector near its end to turn the caps about their closed side and position them on the anvil in a flat position.

\VILLIAM C. BRAY.

lVitnesses:

FRED A. Porn, Gno. E. STROUT.

7 Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

